Filip,
This is a very useful thing for those of us who have to contend with firewalls and
multiple datacentres.
If it can't go into the main CVS area can we have a 'standard extentions' type area
where things like
this can be kept with instructions on how to install ?
Thanks
David
"Filip Hanik"
<[EMAIL PROTECTED] To: "Tomcat Developers List"
<[EMAIL PROTECTED]>
om> cc:
Subject: RE: [PATCH] Clustering
members using UDP sockets instead of multicast ones
26/01/2004 23:30
Please respond to
"Tomcat
Developers List"
thanks for the patch, I am not submitting this to CVS as I don't see that
much added value. But if others find it useful, this is configurable anyway,
so there is nothing hard coded in the current code about the membership.
hope that is ok.
Filip
-----Original Message-----
From: Raul Benito [mailto:[EMAIL PROTECTED]
Sent: Monday, January 26, 2004 11:25 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: [PATCH] Clustering members using UDP sockets instead of
multicast ones
Hi,
I'm testing the tomcat5 cluster in an environment where multicast
connections are filtered. So in order to test our implementation in a
cluster tomcat, i created this little UdpService that is heavily based
in McastService, but the cluster nodes are specified in an attribute as
comma delimited instead of been discover. It is not intended to be a
fast, it is only for testing. Perhaps somebody wants for something, and
keep doing this great work.
Regards,
Index: McastServiceImpl.java
===================================================================
RCS file:
/home/cvspublic/jakarta-tomcat-catalina/modules/cluster/src/share/or
g/apache/catalina/cluster/mcast/McastServiceImpl.java,v
retrieving revision 1.6
diff -u -r1.6 McastServiceImpl.java
--- McastServiceImpl.java 13 Jan 2004 00:07:18 -0000 1.6
+++ McastServiceImpl.java 26 Jan 2004 19:14:41 -0000
@@ -143,6 +143,11 @@
protected long serviceStartTime = System.currentTimeMillis();
/**
+ * void to do inheritance
+ **/
+ protected McastServiceImpl() {}
+
+ /**
* Create a new mcast service impl
* @param member - the local member
* @param sendFrequency - the time (ms) in between pings sent out
------------------------------------------------------
New file
jakarta-tomcat-catalina/modules/cluster/src/share/org/apache/catalin
a/cluster/mcast/UdpServiceImpl.java
package org.apache.catalina.cluster.mcast;
import java.net.DatagramSocket;
import java.io.IOException;
import java.net.InetAddress ;
import java.net.DatagramPacket;
import org.apache.catalina.cluster.MembershipListener;
public class UdpServiceImpl extends McastServiceImpl
{
private static org.apache.commons.logging.Log log =
org.apache.commons.logging.LogFactory.getLog( UdpService.class );
/**
* Socket that we intend to listen to
*/
protected DatagramSocket socket;
/**
* The multicast address
*/
protected InetAddress[] address;
/**
* The multicast port
*/
protected int[] port;
/**
* Create a new mcast service impl
* @param member - the local member
* @param sendFrequency - the time (ms) in between pings sent out
* @param expireTime - the time (ms) for a member to expire
* @param port - the mcast port
* @param bind - the bind address (not sure this is used yet)
* @param mcastAddress - the mcast address
* @param service - the callback service
* @throws IOException
*/
public UdpServiceImpl(
long sendFrequency,
long expireTime,
int port,
int[] ports,
InetAddress bind,
InetAddress[] mcastAddress,
MembershipListener service)
throws IOException {
System.out.println("HOLA0");
if ( bind != null) socket = new DatagramSocket(new
java.net.InetSocketAddress(bind,port));
else socket = new DatagramSocket(port);
this.member = member;
address = mcastAddress;
this.port = ports;
receivePacket = new DatagramPacket(new byte[1000],1000);
//receivePacket.setAddress(address);
receivePacket.setPort(port);
membership = new McastMembership(member.getName());
timeToExpiration = expireTime;
this.service = service;
this.sendFrequency = sendFrequency;
}
/**
* Send a ping
* @throws Exception
*/
public void send() throws Exception{
byte[] data = member.getData(this.serviceStartTime);
for (int i=0;i<address.length;i++) {
DatagramPacket p = new DatagramPacket(data,data.length);
p.setAddress(address[i]);
p.setPort(port[i]);
socket.send(p);
}
}
}
--------------------------------------------------------------------------
New file
jakarta-tomcat-catalina/modules/cluster/src/share/org/apache/catalin
a/cluster/mcast/UdpService.java
package org.apache.catalina.cluster.mcast;
import org.apache.catalina.cluster.MembershipService;
import java.util.Properties;
import org.apache.catalina.cluster.Member;
import org.apache.catalina.cluster.MembershipListener;
import java.util.Properties;
public class UdpService extends McastService {
private static org.apache.commons.logging.Log log =
org.apache.commons.logging.LogFactory.getLog( UdpService.class );
/**
* Start broadcasting and listening to membership pings
* @throws java.lang.Exception if a IO error occurs
*/
public void start() throws java.lang.Exception {
if ( impl != null ) return;
String host = getProperties().getProperty("tcpListenHost");
int port =
Integer.parseInt(getProperties().getProperty("tcpListenPort"));
String name = "tcp://"+host+":"+port;
localMember = new McastMember(name,host,port,100);
java.net.InetAddress bind = null;
if ( properties.getProperty("mcastBindAddress")!= null ) {
bind =
java.net.InetAddress.getByName(properties.getProperty("mcastBindAddress"));
}
String listAdr=properties.getProperty("mcastAddress");
String[] addrs=listAdr.split(",");
java.net.InetAddress[] addr= new java.net.InetAddress[addrs.length];
int[] ports=new int[addrs.length];
for (int i=0;i<addrs.length;i++) {
ports[i]=Integer.parseInt(addrs[i].split(":")[1]);
addr[i]=java.net.InetAddress.getByName(addrs[i].split(":")[0]);
}
impl = new UdpServiceImpl((McastMember)localMember,
Long.parseLong(properties.getProperty("msgFrequency")),
Long.parseLong(properties.getProperty("memberDropTime")),
port,
ports,
bind,
addr,
this);
impl.start();
}
/**
* Simple test program
* @param args
* @throws Exception
*/
public static void main(String args[]) throws Exception {
System.out.println("Usage McastService hostname tcpport");
UdpService service = new UdpService();
java.util.Properties p = new java.util.Properties();
p.setProperty("mcastPort","5555");
p.setProperty("mcastAddress","127.0.0.1:4000,127.0.0.1:40001,127.0.0
.1:40002");
p.setProperty("bindAddress","localhost");
p.setProperty("memberDropTime","3000");
p.setProperty("msgFrequency","500");
p.setProperty("tcpListenPort",args[1]);
p.setProperty("tcpListenHost",args[0]);
service.setProperties(p);
service.start();
Thread.currentThread().sleep(60*1000*60);
}
}
------------------------------------------------------------
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
--
This e-mail may contain confidential and/or privileged information. If you are not the
intended recipient (or have received this e-mail in error) please notify the sender
immediately and destroy this e-mail. Any unauthorized copying, disclosure or
distribution of the material in this e-mail is strictly forbidden.
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
